ff95059748
Add new internal upload target for Google Cloud Platform and osbuild-upload-gcp CLI tool which uses the API. Supported features are: - Authenticate with GCP using explicitly provided JSON credentials file or let the authentication be handled automatically by the Google cloud client library. The later is useful e.g. when the worker is running in GCP VM instance, which has associated permissions with it. - Upload an existing image file into existing Storage bucket. - Verify MD5 checksum of the uploaded image file against the local file's checksum. - Import the uploaded image file into Compute Node as an Image. - Delete the uploaded image file after a successful image import. - Delete all cache files from storage created as part of the image import build job. - Share the imported image with a list of specified accounts. GCP-specific image type is not yet added, since GCP supports importing VMDK and VHD images, which the osbuild-composer already supports. Update go.mod, vendor/ content and SPEC file with new dependencies. Signed-off-by: Tomas Hozza <thozza@redhat.com>
75 lines
2.2 KiB
Go
75 lines
2.2 KiB
Go
// Copyright 2017, OpenCensus Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package trace
|
|
|
|
import (
|
|
"encoding/binary"
|
|
)
|
|
|
|
const defaultSamplingProbability = 1e-4
|
|
|
|
// Sampler decides whether a trace should be sampled and exported.
|
|
type Sampler func(SamplingParameters) SamplingDecision
|
|
|
|
// SamplingParameters contains the values passed to a Sampler.
|
|
type SamplingParameters struct {
|
|
ParentContext SpanContext
|
|
TraceID TraceID
|
|
SpanID SpanID
|
|
Name string
|
|
HasRemoteParent bool
|
|
}
|
|
|
|
// SamplingDecision is the value returned by a Sampler.
|
|
type SamplingDecision struct {
|
|
Sample bool
|
|
}
|
|
|
|
// ProbabilitySampler returns a Sampler that samples a given fraction of traces.
|
|
//
|
|
// It also samples spans whose parents are sampled.
|
|
func ProbabilitySampler(fraction float64) Sampler {
|
|
if !(fraction >= 0) {
|
|
fraction = 0
|
|
} else if fraction >= 1 {
|
|
return AlwaysSample()
|
|
}
|
|
|
|
traceIDUpperBound := uint64(fraction * (1 << 63))
|
|
return Sampler(func(p SamplingParameters) SamplingDecision {
|
|
if p.ParentContext.IsSampled() {
|
|
return SamplingDecision{Sample: true}
|
|
}
|
|
x := binary.BigEndian.Uint64(p.TraceID[0:8]) >> 1
|
|
return SamplingDecision{Sample: x < traceIDUpperBound}
|
|
})
|
|
}
|
|
|
|
// AlwaysSample returns a Sampler that samples every trace.
|
|
// Be careful about using this sampler in a production application with
|
|
// significant traffic: a new trace will be started and exported for every
|
|
// request.
|
|
func AlwaysSample() Sampler {
|
|
return func(p SamplingParameters) SamplingDecision {
|
|
return SamplingDecision{Sample: true}
|
|
}
|
|
}
|
|
|
|
// NeverSample returns a Sampler that samples no traces.
|
|
func NeverSample() Sampler {
|
|
return func(p SamplingParameters) SamplingDecision {
|
|
return SamplingDecision{Sample: false}
|
|
}
|
|
}
|